Process tube for manufacturing semiconductor wafers



FIG. 1 is a perspective view of the design for a process tube for manufacturing semiconductor wafers in accordance with the invention;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a left side view thereof;

FIG. 8 is a sectional view thereof along line 8—8 of FIG. 4;

FIG. 9 is a sectional view thereof along line 9—9 of FIG. 4;

FIG. 10 is a sectional view thereof along line 10—10 of FIG. 4; and,

FIG. 11 is a sectional view thereof along line 11—11 of FIG. 2.

The broken lines are shown for illustrative purpose only and form no part of the claimed design. 

The ornamental design for a process tub for manufacturing semiconductor wafers, as shown and described. 